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Organic light emitting diode display panel

a light-emitting diode and display panel technology, applied in the direction of diodes, semiconductor devices, electrical apparatus, etc., can solve the problem that the pixel patterning using a fmm may not be applicable, and achieve the effect of improving color gamut ratio, good panel efficiency, and reducing driving voltag

Active Publication Date: 2018-05-01
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This design minimizes the increase in driving voltage, improves color gamut ratio, and maintains high panel efficiency while reducing the complexity of organic light-emitting layers, specifically enhancing red color representation without additional layers.

Problems solved by technology

As display screens become larger, pixel patterning using a FMM may not be applicable due to misalignment.

Method used

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  • Organic light emitting diode display panel
  • Organic light emitting diode display panel
  • Organic light emitting diode display panel

Examples

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Embodiment Construction

[0033]Advantages and features of the present disclosure and methods to achieve them will become apparent from the descriptions of exemplary embodiments herein below with reference to the accompanying drawings. However, the present disclosure is not limited to exemplary embodiments disclosed herein but may be implemented in various different ways. The exemplary embodiments are provided for making the disclosure of the present disclosure thorough and for fully conveying the scope of the present disclosure to those skilled in the art. It is to be noted that the scope of the present disclosure is defined only by the claims.

[0034]The figures, dimensions, ratios, angles, numbers of elements given in the drawings are merely illustrative and are not limiting. Like reference numerals denote like elements throughout the descriptions. Further, in describing the present disclosure, descriptions on well-known technologies may be omitted in order not to obscure the gist of the present disclosure....

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Abstract

An organic light-emitting diode (OLED) display panel includes: an OLED layer; a color filter layer; and a color coordinate tuning layer disposed between the OLED layer and the color filter layer, wherein the OLED layer includes a first light-emitting portion comprising a first light-emitting layer configured to emit a first light and a second light-emitting portion comprising a second light-emitting layer configured to emit a second light. The OLED layer is configured to emit a third light produced by mixing the first light and the second light. The color coordinate tuning layer is configured to output a fourth light different from the third light. The number of all of peaks and shoulders that an EL spectrum of the fourth light has is higher than the number of all of peaks and shoulders that an EL spectrum of the third light has throughout an entire range of a visible wavelength band.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the priority of Korean Patent Application No. 10-2014-0058259 filed on May 15, 2014, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.BACKGROUND[0002]Field of Technology[0003]The present disclosure relates to an organic light-emitting diode (OLED) display panel, and more specifically to an OLED display panel with an improved color gamut ratio.[0004]Description of the Related Art[0005]An organic light-emitting diode (OLED) is a device capable of producing light on its own. Accordingly, a lighter and thinner display device that does not require an additional light source, unlike a liquid crystal devices LCD, can be manufactured using OLEDs. Further, OLEDs have advantages in that they are driven with low voltage to thereby consume less power. Further, they reproduce better colors and have good response speed, wider viewing angle and good contrast ratio (CR). For t...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): H01L27/32H01L51/52
CPCH01L27/322H01L51/5281H01L27/3209H10K59/32H10K59/38H10K50/86
Inventor GEE, MOONBAEPARK, HANSUNSONG, DONGWOOKIM, SOOHYUN
Owner LG DISPLAY CO LTD
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